Sending a GET-string

Re: Sending a GET-string


"Rick" <aso3rick@hotma il.com> wrote in message
news:3fe1885d$0 $228$e4fe514c@n ews.xs4all.nl.. .[color=blue]
> Hi,
>
> How to send a so called GET-string from an applet to a certain IP adress?
> With a GET-string I mean that thing basic HTML can do as well. If you[/color]
click[color=blue]
> on a save button or something on a page you often see strings like these[/color]
in[color=blue]
> the adress field:
> "/blabla.html/?test=yes&name= ....
> That stuff is sended to some IP adress which handles the arguments (
> everything after the '?' ) and sends a page back. Basically it's just a
> hyperlink. So, maybe I should ask, how to send a string to a known IP
> adress? I don't think I can setup a client/host udp/tcp socket-thingie
> connection between the remote thing(a microcontroller with GPRS modem) so
> how to do it then?
>
> Greetings,
> Rick
>
>[/color]

Look into class URL and (Http(s))URLCon nection. HTTP(S) has been done for
you but it has been tucked away somewhat..

Regards,

Silvio Bierman

Re: Sending a GET-string

Thanks for your fast reply! I tried
url = new java.net.HttpUR LConnection( ... );
But now... what to fill in for the parameter? It's maybe a stupid question
but I'm not very familiar with url's, internet and stuff. Let's say I have
this IP adress, "1.2.3.4", it's the IP adress of that GPRS modem thing. Now
I want to request "test.html" . How to set-up the parameter?

By the way, when that URL class is created is the string sended immidiatly
or do I need to do another call before it goes?

Thanks again!
Rick

Re: Sending a GET-string


"Rick" <aso3rick@hotma il.com> wrote in message
news:3fe18e35$0 $233$e4fe514c@n ews.xs4all.nl.. .[color=blue]
> Thanks for your fast reply! I tried
> url = new java.net.HttpUR LConnection( ... );
> But now... what to fill in for the parameter? It's maybe a stupid question
> but I'm not very familiar with url's, internet and stuff. Let's say I have
> this IP adress, "1.2.3.4", it's the IP adress of that GPRS modem thing.[/color]
Now[color=blue]
> I want to request "test.html" . How to set-up the parameter?
>
> By the way, when that URL class is created is the string sended immidiatly
> or do I need to do another call before it goes?
>
> Thanks again!
> Rick
>
>[/color]

It goes something like this:

URL url = new URL("http://bla.bla.com/bla");
HttpURLConnecti on con = (HttpURLConnect ion)servlet.ope nConnection();
con.setDoInput( true);
con.setDoOutput (true);
con.setUseCache s(false);
//add headers on con
OutputStream out = con.getOutputSt ream(); //request is committed, headers
are fixed
//write the request body
out.close();
InputStream in = con.getInputStr eam();
//read the response body
in.close();
//done

This will result in a POST request. Use setDoOutput(fal se) and skip the
outputstream part do do a GET. HttpURLConnecti on has methods to be explicit
on the HTTP verb.

Just from the top of my head so don't sue me...

Regards,

Silvio Bierman

Re: Sending a GET-string

Thanks for taking time! It's getting clear now.

Rick